<template>
  <el-dialog
    title="批量导入"
    :close-on-click-modal="false"
    :visible.sync="visible"
    class="jsbos-dialog jsbos-dialog_center jsbos-dialog-import"
    lock-scroll
    width="95%"
  >
    <el-steps :active="active" align-center>
      <el-step title="上传文件"></el-step>
      <el-step title="数据预览"></el-step>
      <el-step title="导入数据"></el-step>
    </el-steps>
    <div class="import-main" v-show="active == 1">
      <div class="upload">
        <div class="up_left">
          <img src="@/assets/images/upload.png" />
        </div>
        <div class="up_right">
          <p class="title">上传填好的数据表</p>
          <p class="tip">
            文件后缀名必须是xls或xlsx，文件大小不超过500KB，最多支持导入1000条数据
          </p>
          <el-upload
            :action="define.comUrl + '/api/extend/Employee/Uploader'"
            :headers="{ Authorization: $store.getters.token }"
            :on-success="handleSuccess"
            :on-remove="handleRemove"
            :before-remove="beforeRemove"
            :on-change="handleChange"
            :file-list="fileList"
            accept=".xls,.xlsx"
            :before-upload="beforeUpload"
            class="upload-area"
          >
            <el-button type="text">上传文件</el-button>
          </el-upload>
        </div>
      </div>
      <div class="upload">
        <div class="up_left">
          <img src="@/assets/images/import.png" />
        </div>
        <div class="up_right">
          <p class="title">填写导入数据信息</p>
          <p class="tip">
            请按照数据模板的格式准备导入数据，模板中的表头名称不可更改，表头行不能删除
          </p>
          <el-button type="text" @click="templateDownload">下载模板</el-button>
        </div>
      </div>
    </div>
    <div class="import-main" v-show="active == 2">
      <jsbos-table v-loading="listLoading" :data="list">
        <el-table-column prop="userName" label="姓名">
          <template slot-scope="scope">
            <el-input v-model="scope.row.userName" />
          </template>
        </el-table-column>
        <el-table-column prop="userPhone" label="手机号">
          <template slot-scope="scope">
            <el-input v-model="scope.row.userPhone" />
          </template>
        </el-table-column>
        <!-- <el-table-column prop="pass" label="是否参与抽奖">
          <template slot-scope="scope">
            <el-input v-model="scope.row.pass" />
          </template>
        </el-table-column> -->

        <el-table-column prop="reamark" label="备注">
          <template slot-scope="scope">
            <el-input v-model="scope.row.reamark" />
          </template>
        </el-table-column>

        <el-table-column label="操作" fixed="right" width="50">
          <template slot-scope="scope">
            <el-button
              size="mini"
              type="text"
              class="jsbos-table-delBtn"
              @click="handleDel(scope.$index)"
              >删除</el-button
            >
          </template>
        </el-table-column>
      </jsbos-table>
    </div>
    <div class="import-main" v-show="active == 3">
      <div class="success" v-if="!result.resultType">
        <img src="@/assets/images/success.png" alt="" />
        <p class="success-title">批量导入成功</p>
        <p class="success-tip">您已成功导入{{ result.snum }}条数据</p>
      </div>
      <div class="unsuccess" v-if="result.resultType">
        <el-alert
          title="错误提醒：导入失败数据展示"
          type="warning"
          show-icon
          :closable="false"
        />
        <div class="upload error-show">
          <div class="up_left">
            <img class="" src="@/assets/images/tip.png" />
          </div>
          <div class="up_right">
            <p class="tip">
              正常数量条数：<el-link type="success" :underline="false"
                >{{ result.snum }}条
              </el-link>
            </p>
            <p class="tip">
              异常数量条数：<el-link type="danger" :underline="false"
                >{{ result.fnum }}条
              </el-link>
            </p>
          </div>
        </div>
        <p class="contips">
          以下文件数据为导入异常数据<el-button
            type="error"
            plain
            size="mini"
            @click.stop.prevent="exportData"
            >导出</el-button
          >
        </p>
        <jsbos-table id="exportTable" :data="resultList" height="280px">
          <el-table-column prop="userName" label="姓名" />
          <el-table-column prop="userPhone" label="手机号" />
          <el-table-column prop="remark" label="备注" />
          <el-table-column prop="errorMessage" label="错误信息">
            <template slot-scope="scope">
              <span class="error_message">{{ scope.row.errorMessage }}</span>
            </template>
          </el-table-column>
        </jsbos-table>
      </div>
    </div>
    <span slot="footer" class="dialog-footer">
      <el-button @click="cancel()" v-if="active == 1">取 消</el-button>
      <el-button @click="prev" v-if="active == 2">上一步</el-button>
      <el-button
        @click="next"
        type="primary"
        v-if="active < 3"
        :loading="btnLoading"
        :disabled="active == 1 && !fileName"
        >下一步
      </el-button>
      <el-button @click="cancel(true)" type="primary" v-else>关 闭</el-button>
    </span>
  </el-dialog>
</template>

<script>
import * as XLSX from "xlsx";
import {
  TemplateDownload,
  ImportData,
  ImportPreview,
} from "@/views/cms/user/js/user";
export default {
  data() {
    return {
      activityId: "",
      visible: false,
      btnLoading: false,
      listLoading: false,
      fileName: "",
      fileList: [],
      active: 1,
      list: [],
      resultList: [],
      result: {
        resultType: 0,
        snum: 0,
        fnum: 0,
      },
      listItems: [
        { label: "姓名" },
        { label: "手机号" },
        { label: "备注" },
        { label: "错误信息" },
      ],
    };
  },
  methods: {
    prev() {
      if (this.active == 1) return;
      this.active--;
    },
    next() {
      if (this.active == 2) {
        if (!this.list.length)
          return this.$message({ message: "导入数据为空", type: "warning" });
        this.btnLoading = true;
        ImportData(this.list, this.activityId)
          .then((res) => {
            this.result = res.data;
            this.resultList = res.data.failResult;
            this.btnLoading = false;
            this.active++;
          })
          .catch(() => {
            this.btnLoading = false;
          });
      }
      if (this.active == 1) {
        if (!this.fileList.length || !this.fileName)
          return this.$message({ message: "请先上传文件", type: "warning" });
        this.btnLoading = true;
        ImportPreview({ fileName: this.fileName })
          .then((res) => {
            this.list = res.data.dataRow;
            this.btnLoading = false;
            this.active++;
          })
          .catch(() => {
            this.btnLoading = false;
          });
      }
    },
    cancel(isRefresh) {
      this.visible = false;

      this.$nextTick(() => {
        this.$emit("freshimport");
      });
    },
    init(activityId) {
      this.activityId = activityId ? activityId : "";
      this.active = 1;
      this.fileList = [];
      this.fileName = "";
      this.visible = true;
    },
    handleDel(index) {
      this.list.splice(index, 1);
    },
    templateDownload() {
      TemplateDownload().then((res) => {
        this.jsbos.downloadFile(res.data.url);
      });
    },
    beforeUpload(file) {
      let isRightSize = file.size / 1024 < 500;
      if (!isRightSize) this.$message.error(`文件大小不能超过500KB`);
      return isRightSize;
    },
    handleRemove(file, fileList) {
      this.fileList = [];
    },
    beforeRemove(file, fileList) {
      return this.$confirm(`确定移除 ${file.name}？`).catch(() => {});
    },
    handleChange(file, fileList) {
      this.fileList = fileList.slice(-1);
    },
    handleSuccess(res, file, fileList) {
      if (res.code == 200) {
        this.fileList = fileList.slice(-1);
        this.fileName = res.data.name;
      } else {
        this.fileList = fileList.filter((o) => o.uid != file.uid);
        this.$message({ message: res.msg, type: "error", duration: 1000 });
      }
    },
    exportData() {
      this.$confirm("确定要导出列表文件?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      }).then(() => {
        // this.resultList是用后端请求到的数据
        this.exportNewList(this.resultList);
      });
    },
    exportNewList(arr) {
      let tableData = [];
      var tabHandle = []; //导出表头
      // this.listItems 是表头数据
      this.listItems.forEach((item) => {
        console.log(item);
        console.log(item.label);
        tabHandle.push(item.label);
      }); //表头数组
      arr.forEach((item, index) => {
        let rowData = [];
        //导出内容的字段
        rowData = [
          item.userName,
          item.userPhone,
          item.reamark,
          item.errorMessage,
          // item.supplier,
          // item.price,
          // item.number,
          // item.matUnit,
          // item.description,
        ];
        tableData.push(rowData);
      });
      const arrayWithHeader = [tabHandle, ...tableData];
      var xlsxParam = { raw: true }; //转换成excel时，使用原始的格式
      let workSheet = XLSX.utils.json_to_sheet(arrayWithHeader, xlsxParam);
      let bookNew = XLSX.utils.book_new();
      XLSX.utils.book_append_sheet(bookNew, workSheet, "导出异常数据"); // 工作簿名称
      let name = `导出异常数据_${new Date().getTime()}.xlsx`; //表格名称
      XLSX.writeFile(bookNew, name); // 保存的文件名
    },
  },
};
</script>
<style scoped lang="scss">
.error_message {
  white-space: pre-line;
  color: #f56c6c;
}
</style>
